<div class="container-fluid">
    <div class="row">
        <div class="col-md-6">
            <div class="input-group">
                <div class="custom-file">
                    <input id="txtFile" type="file" class="custom-file-input" accept="image/*">
                    <label class="custom-file-label" id="pr">选择图片 或 拖拽图片文件 或 Ctrl + V 粘贴图片</label>
                </div>
                <div class="input-group-prepend">
                    <button class="btn btn-info" title="逆时针旋转 5°" id="btnRotateLeft"><i class="fa fa-rotate-left"></i></button>
                </div>
                <div class="input-group-prepend">
                    <button class="btn btn-info" title="顺时针旋转 5°" id="btnRotateRight"><i class="fa fa-rotate-right"></i></button>
                </div>
                <div class="input-group-prepend">
                    <button class="btn btn-info" title="重置" id="btnReset"><i class="fa fa-refresh"></i></button>
                </div>
                <div class="input-group-prepend">
                    <button class="btn btn-warning" id="btnOcr">识别</button>
                </div>
            </div>
            <div class="mt-3">
                <div class="img-container" style="height:400px">
                    <img id="imgview">
                </div>
            </div>
        </div>
        <div class="col-md-6">
            <textarea class="form-control" style="height:454px" id="txtResult"></textarea>
        </div>
    </div>
</div>

<script>

</script>